“From Up on Poppy Hill” is based on the Manga of the same title, and centers on a group of teenagers attempting to save their clubhouse from demolition in the wake of the 1964 Tokyo Olympics preparations. Like “Whisper of the Heart” (also from a Miyazaki script), “Poppy Hill” seems to linger in melancholic adolescent exchanges, with sentences that trail off and complicated revelations about family issues.